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Finding the Fourth Proportional to 673.66, 930.54 and 543.16

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Solution

The fourth proportional to 673.66, 930.54 and 543.16 is: 750.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.66 : 930.54 = 543.16 : x
  2. Step 2: Convert to fraction form
    673.66/930.54 = 543.16/x
  3. Step 3: Cross multiply
    673.66x = 930.54 × 543.16
  4. Step 4: Simplify right side
    673.66x = 505,432.11
  5. Step 5: Solve for x
    x = 505,432.11/673.66
  6. Step 6: Final answer
    x = 750.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.